A handheld CO2 cannon is a special effects device that uses compressed carbon dioxide (CO2) to produce spectacular bursts of fog or smoke. These cannons are portable and easy to operate, making them popular for concerts, nightclubs, and stage performances. When activated, the cannon releases a powerful jet of CO2, creating a visually striking plume of fog that adds excitement and energy to live events. The effect is safe, non-toxic, and quickly dissipates, making it a favorite among event organizers and performers for creating memorable moments.